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浏览/检索结果: 共2条，第1-2条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Observation of the Penglai 19-3 oil leak and its impact on the sea area ecosystem 会议论文 Munich, Germany, July 22, 2012 - July 27, 2012 作者:  Guo, Jie;  Guo, Jie;  Guo, Jie;  Liu, Xin 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/11 Atmospheric Temperature  Chlorophyll  Ecosystems  Geology  Oceanography  Radiometers  Remote Sensing   Athermalization of coaxial reflective space telescope (EI CONFERENCE) 会议论文 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China Lei Z.; Guang J. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 This paper focuses on thermal effects  which caused by environmental temperature changes  on coaxial reflective space telescope and its solution. Curvature radius and center thickness of optical elements  and the space distance between optical elements may be changed by thermal effects. And the optical performance of the telescope may be impacted. Based on the analysis of thermal effects on coaxial reflective space telescope  athermalized design techniques are emphatically presented  the advantages and the disadvantages of the three athermalizations used currently are compared in the paper. The feasibility and effectiveness are verified by an example of a cassegrain space telescope. 2010 Copyright SPIE - The International Society for Optical Engineering.